Besides Sippora Marianne Samson Kloot and Betje Appelboom had three other children. One of them survived the war. Hartog and Maurits did not.
Stadsarchief Amsterdam, archiefkaart Samson Kloot
In addition, Jokos files (numbers 9438, 5817) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 6506/9066).